books.google.fr - In this book, the famous Greek mathematician Constantin Caratheodory presents his generalization of the classical theory of measure and integration. The main component of this generalization is the replacement of the Boolean algebra of subsets of the base space $X$ with an arbitrary Boolean algebra....https://books.google.fr/books/about/Algebraic_Theory_of_Measure_and_Integrat.html?hl=fr&id=Ho65fAC2VgwC&utm_source=gb-gplus-shareAlgebraic Theory of Measure and Integration